Collapsible stretcher



FIG. 1 is a top perspective view of a collapsible stretcher showing mynew design;

FIG. 2 is a bottom perspective view thereof;

FIG. 3 is a top perspective view thereof showing the stretcher incollapsed condition; and

FIG. 4 is a bottom perspective view of FIG. 3.

The ornamental design for a collapsible stretcher, as shown anddescribed.